Copper-clad laminates
CGA-500
- Copper-clad laminates
- high-frequency type
- RoHS Directive
Overview
The Copper-clad laminated circuit board using flouroplastic impregnated glass fabric containing inorganic filler as the dielectric.
Obtaining characteristics of fluoroplastic, it also has lower water absorbency than resins.
Main applications
Satellite communication/Satellite broadcasting/Receiving LNB/Transmitter
Structure
Characteristics
• It is suitable for mass production use while maintaining high frequency characteristics of fluoroplastic substrate.
• It has 3.0 dielectric constant.
Typical dimensions
| General thickness (mm) | Acceptable variation of thickness | Dielectric constant | Dissipation factor | |
|---|---|---|---|---|
| 1020×1220 | 510×1220 | |||
| 0.4 | ±0.05 | 3 | <0.0030 | |
| 0.5 | ±0.05 | |||
| 0.6 | ±0.06 | |||
| 0.8 | ±0.08 | |||
| 1.0 | ±0.10 | |||
| 1.2 | ±0.12 | |||
| 1.6 | ±0.20 | |||
*The dielectric constant is assumed to be 3.00. However, the dielectric constant varies with varying thickness.
The tolerance of the dielectric constant is assumed to be ±0.10 for any one variety.
*As a standard we have used ½ oz. electrolytic copper foil on both sides. For other thicknesses of electrolytic copper foil, copper foil on one side, rolled copper foil, or in the case where other special measurements are necessary, please seek a special consultation from us directly.
| Official thickness | Purity | ||
|---|---|---|---|
| 1/2oz | 0.018mm | ±0.005 | 99.8% or more |
| 1oz | 0.035mm | +0.010 -0.005 | |
| 2oz | 0.070mm | +0.018 -0.008 | |
Typical properties
| Test item | Test condition | Measured value (1.6mm thick) |
|---|---|---|
| Specific gravity | A | 2.2 |
| Volume resistivity (Ω•cm) | A | 1015 |
| C-96/40/90 | 1014 | |
| Surface resistivity (Ω) | A | 1014 |
| C-96/40/90 | 1014 | |
| Insulation resistance (Ω) | A | 1013 |
| D-2/100 | 1013 | |
| Linear expansion coefficient (ppm/℃) | ‐60℃ to 150℃ | 21 |
| Peel strength (kN/m) | A | 3 |
| 200℃ atmosphere | 1.5 | |
| Bending strength (N/mm2) | A | 100 |
| Water absorption | — | 0.01 |
| Chemical resistance | — | Excellent |
| Flammability | — | Incombustable |
*Peel strength is the measured value of 1 oz. (0.035mm) copper foil.
*Values shown in this table represent measurements and do not constitute guaranteed values.
